15 research outputs found

    Long term care and the coronavirus pandemic: a new role for environmental design in a changing context

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    First paragraph: It took more than three decades of championing the principles of environmental design for dementia and developing the research evidence base on how the physical environment can support the independence and wellbeing of people with dementia to reach a point where cognitively supportive design should be the default requirement for new and existing long term residential care facilities. It has taken a fraction of that time for an emerging coronavirus to displace concern with residents’ lived experience in favour of strict transmission and infection control measures, forcing a return to more institutionalised and medicalised environments and care practices

    Targeting DNA Damage Response and Replication Stress in Pancreatic Cancer

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    Background and aims: Continuing recalcitrance to therapy cements pancreatic cancer (PC) as the most lethal malignancy, which is set to become the second leading cause of cancer death in our society. The study aim was to investigate the association between DNA damage response (DDR), replication stress and novel therapeutic response in PC to develop a biomarker driven therapeutic strategy targeting DDR and replication stress in PC. Methods: We interrogated the transcriptome, genome, proteome and functional characteristics of 61 novel PC patient-derived cell lines to define novel therapeutic strategies targeting DDR and replication stress. Validation was done in patient derived xenografts and human PC organoids. Results: Patient-derived cell lines faithfully recapitulate the epithelial component of pancreatic tumors including previously described molecular subtypes. Biomarkers of DDR deficiency, including a novel signature of homologous recombination deficiency, co-segregates with response to platinum (P < 0.001) and PARP inhibitor therapy (P < 0.001) in vitro and in vivo. We generated a novel signature of replication stress with which predicts response to ATR (P < 0.018) and WEE1 inhibitor (P < 0.029) treatment in both cell lines and human PC organoids. Replication stress was enriched in the squamous subtype of PC (P < 0.001) but not associated with DDR deficiency. Conclusions: Replication stress and DDR deficiency are independent of each other, creating opportunities for therapy in DDR proficient PC, and post-platinum therapy

    Mortality and pulmonary complications in patients undergoing surgery with perioperative SARS-CoV-2 infection: an international cohort study

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    Background: The impact of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) on postoperative recovery needs to be understood to inform clinical decision making during and after the COVID-19 pandemic. This study reports 30-day mortality and pulmonary complication rates in patients with perioperative SARS-CoV-2 infection. Methods: This international, multicentre, cohort study at 235 hospitals in 24 countries included all patients undergoing surgery who had SARS-CoV-2 infection confirmed within 7 days before or 30 days after surgery. The primary outcome measure was 30-day postoperative mortality and was assessed in all enrolled patients. The main secondary outcome measure was pulmonary complications, defined as pneumonia, acute respiratory distress syndrome, or unexpected postoperative ventilation. Findings: This analysis includes 1128 patients who had surgery between Jan 1 and March 31, 2020, of whom 835 (74·0%) had emergency surgery and 280 (24·8%) had elective surgery. SARS-CoV-2 infection was confirmed preoperatively in 294 (26·1%) patients. 30-day mortality was 23·8% (268 of 1128). Pulmonary complications occurred in 577 (51·2%) of 1128 patients; 30-day mortality in these patients was 38·0% (219 of 577), accounting for 81·7% (219 of 268) of all deaths. In adjusted analyses, 30-day mortality was associated with male sex (odds ratio 1·75 [95% CI 1·28–2·40], p\textless0·0001), age 70 years or older versus younger than 70 years (2·30 [1·65–3·22], p\textless0·0001), American Society of Anesthesiologists grades 3–5 versus grades 1–2 (2·35 [1·57–3·53], p\textless0·0001), malignant versus benign or obstetric diagnosis (1·55 [1·01–2·39], p=0·046), emergency versus elective surgery (1·67 [1·06–2·63], p=0·026), and major versus minor surgery (1·52 [1·01–2·31], p=0·047). Interpretation: Postoperative pulmonary complications occur in half of patients with perioperative SARS-CoV-2 infection and are associated with high mortality. Thresholds for surgery during the COVID-19 pandemic should be higher than during normal practice, particularly in men aged 70 years and older. Consideration should be given for postponing non-urgent procedures and promoting non-operative treatment to delay or avoid the need for surgery. Funding: National Institute for Health Research (NIHR), Association of Coloproctology of Great Britain and Ireland, Bowel and Cancer Research, Bowel Disease Research Foundation, Association of Upper Gastrointestinal Surgeons, British Association of Surgical Oncology, British Gynaecological Cancer Society, European Society of Coloproctology, NIHR Academy, Sarcoma UK, Vascular Society for Great Britain and Ireland, and Yorkshire Cancer Research

    Finishing the euchromatic sequence of the human genome

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    The sequence of the human genome encodes the genetic instructions for human physiology, as well as rich information about human evolution. In 2001, the International Human Genome Sequencing Consortium reported a draft sequence of the euchromatic portion of the human genome. Since then, the international collaboration has worked to convert this draft into a genome sequence with high accuracy and nearly complete coverage. Here, we report the result of this finishing process. The current genome sequence (Build 35) contains 2.85 billion nucleotides interrupted by only 341 gaps. It covers ∌99% of the euchromatic genome and is accurate to an error rate of ∌1 event per 100,000 bases. Many of the remaining euchromatic gaps are associated with segmental duplications and will require focused work with new methods. The near-complete sequence, the first for a vertebrate, greatly improves the precision of biological analyses of the human genome including studies of gene number, birth and death. Notably, the human enome seems to encode only 20,000-25,000 protein-coding genes. The genome sequence reported here should serve as a firm foundation for biomedical research in the decades ahead

    Tipping Points to Institutional Care for Persons Living with Dementia: Analyzing the Policy Trajectory in Ontario

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    Most people, if given a choice, would remain in their own home and community as they age. This desire does not diminish for persons living with dementia (PLWD), yet many end up prematurely or inappropriately in residential long-term care (LTC), or waiting in a hospital bed for placement. While institutional care is valuable for those in need of high intensity care, it is ill-suited for those with lower intensity care needs. Premature or inappropriate placement of PLWD is not good for individuals (PLWD and their caregivers), or for the system (inappropriate use of resources), yet occurs in part because PLWD often have multiple complex, ongoing health and social needs; however, this thesis argues that it also is a result of care systems focused on episodic, curative care, and by fragmented services that are ill-equipped to support PLWD safely and cost-effectively in the community.While much policy analysis has focused on demand side issues (e.g., an aging population, dementia projections and needs), this research addresses supply side factors - particularly local system capacity to provide needed community-based care options for PLWD to live safely and cost-effectively in the community for as long as possible. It uses Neo-institutionalism, a high-level theory drawn from political science, to explore the historical and policy legacies for community based care of PLWD and predict what one would expect to see in the future if Ontario remains on the same familiar path. It also uses a Balance of Care (BoC) simulation methodology to explore what the system will actually provide PLWD to age safely at home. The conceptual and applied approaches combined are expected to provide a greater understanding of the policy trajectory for home and community care, its impact on current resource allocation decisions at the local level in Ontario and the potential for H and concerted health and social care interventions to help offset the growing healthcare costs for high intensity users of the system like PLWD.Ph.D

    Seniors’ campus continuums: local solutions for broad spectrum seniors care

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    Abstract Background As demand and desire to “age-in-place” grows within an aging population, and new areas of need emerge, governments nationally and internationally are focusing effort and attention on innovative and integrative approaches to health and well-being. Seniors’ Campus Continuums are models of care that seek to broaden access to an array of services and housing options to meet growing health and social needs of aging populations. The objective of this study is to increase understanding of this model and factors that influence their evolution, development, ongoing functioning and capacity to integrate care for older adults wishing to age in their own home and community. Methods This research uses a comparative case study approach across six-bounded cases offering four geographically co-located components (mixed housing options, internal and external community supports, and a long-term care home) in various contexts across Ontario, Canada. Onsite in-person and phone interviews with senior campus staff (N = 30), and campus partners (N = 11), enhanced by direct observation at campuses explored historical and current efforts to offer health, housing and social care continuums for older adults. Results Analysis highlighted eight key factors. Enabling factors include i. rich historical legacies of helping people in need; ii. organizational vision and readiness to capitalize on windows of opportunity; iii. leveraging organizational structure and capacity; iv. intentional physical and social design; v. broad services mix, amenities and innovative partnerships. Impeding factors include vi. policy hurdles and rigidities; vii. human resources shortages and inequities; and viii. funding limitations. A number of benefits afforded by campuses at different levels were also observed. Conclusion Findings from this research highlight opportunities to optimize campus potential on many levels. At an individual level, campuses increase local access to a coordinated range of health and social care services, supports and housing options. At an organizational level, campuses offer enhanced collaboration opportunities across providers and partners to improve consistency and coordination of care, and improved access to shared resources, expertise and infrastructure. At a system level, campuses can address a diversity of health, social, financial, and housing needs to help seniors avoid premature or inappropriate use of higher intensity care settings

    “You’ve got to look after yourself, to be able to look after them” a qualitative study of the unmet needs of caregivers of community based primary health care patients

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    Abstract Background There is growing reliance on unpaid caregivers to provide support to people with care needs. Integrated care approaches that aim to coordinate primary care with community care known as community based primary health care (CBPHC) has been a key policy initiative across health systems; however most attention has been paid to the needs of patients and not caregivers. The objective of this paper was to explore the unmet needs of caregivers of older adults with complex care needs receiving CBPHC. Methods This qualitative descriptive study entailed one-to-one interviews with 80 caregivers from Canada and New Zealand where roles, experiences and needs were explored. Interview text related to unmet need was reviewed inductively and core themes identified. Results Three themes were identified across CBPHC sites: unrecognized role; lack of personal resources; and no breaks even when services are in place. Conclusions To support caregivers, models of care such as CBPHC need to look beyond the patient to meaningfully engage caregivers, address their needs and recognize the insight they hold. This knowledge needs to be valued as a key source of evidence to inform developments in health and social care

    How do Policy and Institutional Settings Shape Opportunities for Community-Based Primary Health Care? A Comparison of Ontario, Québec and New Zealand

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    Community-based primary health care describes a model of service provision that is oriented to the population health needs and wants of service users and communities, and has particular relevance to supporting the growing proportion of the population with multiple chronic conditions. Internationally, aspirations for community-based primary health care have stimulated local initiatives and influenced the design of policy solutions. However, the ways in which these ideas and influences find their way into policy and practice is strongly mediated by policy settings and institutional legacies of particular jurisdictions. This paper seeks to compare the key institutional and policy features of Ontario, QuĂ©bec and New Zealand that shape the ‘space available’ for models of community-based primary health care to take root and develop. Our analysis suggests that two key conditions are the integration of relevant health and social sector organisations, and the range of policy levers that are available and used by governments. New Zealand has the most favourable conditions, and Ontario the least favourable. All jurisdictions, however, share a crucial barrier, namely the ‘barbed-wire fence’ that separates funding of medical and ‘non-medical’ primary care services, and the clear interests primary care doctors have in maintaining this fence. Moves in the direction of system-wide community-based primary health care require a gradual dismantling of this fence
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